The Mausoleum of Hadrian, usually known as Castel Sant'Angelo (Italian pronunciation: [ka'st?l san'tand?elo]; English: Castle of the Holy Angel), is a towering cylindrical building in Parco Adriano, Rome, Italy. It was initially commissioned by the Roman EmperorHadrian as a mausoleum for himself and his family. The building was later used by the popes as a fortress and castle, and is now a museum. The structure was once the tallest building in Rome.

Hadrian's tomb

Castel Sant'Angelo from the bridge. The top statue is of Michael the Archangel, the angel from whom the building derives its name.

Castel Sant'Angelo and angel figure

The tomb of the Roman emperor Hadrian, also called Hadrian's mole,[1] was erected on the right bank of the Tiber, between 134 and 139 AD.[2] Originally the mausoleum was a decorated cylinder, with a garden top and golden quadriga. Hadrian's ashes were placed here a year after his death in Baiae in 138, together with those of his wife Sabina, and his first adopted son, Lucius Aelius, who died in 138. Following this, the remains of succeeding emperors were also placed here, the last recorded deposition being Caracalla in 217. The urns containing these ashes were probably placed in what is now known as the Treasury room deep within the building. Hadrian also built the Pons Aelius facing straight onto the mausoleum - it still provides a scenic approach from the center of Rome and the left bank of the Tiber, and is renowned for the Baroque additions of statues of angels holding aloft instruments of the Passion of Christ.

...in order to build churches for the use of the Christians, not only were the most honoured temples of the idols [pagan Roman gods] destroyed, but in order to ennoble and decorate Saint Peter's with more ornaments than it then possessed, they took away the stone columns from the tomb of Hadrian, now the castle of Sant'Angelo, as well as many other things which we now see in ruins.[4]

Legend holds that the Archangel Michael appeared atop the mausoleum, sheathing his sword as a sign of the end of the plague of 590, thus lending the castle its present name. A less charitable yet more apt elaboration of the legend, given the militant disposition of this archangel, was heard by the 15th-century traveler who saw an angel statue on the castle roof. He recounts that during a prolonged season of the plague, Pope Gregory I heard that the populace, even Christians, had begun revering a pagan idol at the church of Santa Agata in Suburra. A vision urged the pope to lead a procession to the church. Upon arriving, the idol miraculously fell apart with a clap of thunder. Returning to St Peter's by the Aelian Bridge, the pope had another vision of an angel atop the castle, wiping the blood from his sword on his mantle, and then sheathing it. While the pope interpreted this as a sign that God was appeased, this did not prevent Gregory from destroying more sites of pagan worship in Rome.[5]

Leo X built a chapel with a Madonna by Raffaello da Montelupo. In 1536 Montelupo also created a marble statue of Saint Michael holding his sword after the 590 plague (as described above) to surmount the Castel.[6] Later Paul III built a rich apartment, to ensure that in any future siege the pope had an appropriate place to stay.

Montelupo's statue was replaced by a bronze statue of the same subject, executed by the Flemish sculptor Peter Anton von Verschaffelt, in 1753. Verschaffelt's is still in place and Montelupo's can be seen in an open court in the interior of the Castle.

The Papal state also used Sant'Angelo as a prison; Giordano Bruno, for example, was imprisoned there for six years. Another prisoner was the sculptor and goldsmith Benvenuto Cellini. Executions were performed in the small inner courtyard. As a prison, it was also the setting for the third act of Giacomo Puccini's 1900 opera Tosca; the eponymous heroine leaps to her death from the Castel's ramparts.

Museum

Decommissioned in 1901, the castle is now a museum, the "Museo Nazionale di Castel Sant'Angelo".